A Brief Review on Fly Ash Utilization

Authors

  • Ankita Srivastava  Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
  • Amit Krishan  Department of Civil Engineering, G. L. Bajaj Institute of Technology and Management, Greater Noida, Uttar Pradesh, India

Keywords:

Fly Ash, Cement, Bricks, Coal, Concrete, Lightweight Aggregate, Composites

Abstract

This article addresses the quantity, characteristics, recycling potential and effective management of fly ash with specific reference to the processes and technologies developed in India. In India major source of electrical energy is fulfilled through coal based thermal power plants resulting in the generation of approx 175 million tons of fly ash as solid waste annually. Considerable efforts have been made in the country to utilize the fly ash in huge quantity for road construction, land filling and producing building materials e.g. bricks, block, cement and clinkers etc. No one would have imagined about two decades back that fly ash will generate revenue. Today, fly ash has become an essential ingredient for many of the industries like cement manufacturers, ready mix concrete plant, asbestos industries, construction industries etc. These segments are now ready to pay the price for the quality. Fly ash utilization has increased from approx 5% in the nineties to 50% during the last few decades in various applications such as cement and asbestos industries, bricks, blocks, lightweight concrete blocks, binder in concrete, embankments, road construction, land reclamation, agriculture, and reclamation of abandoned mines. Indeed fly ash is considered to be a resource material rather as waste which may contribute to saving the natural resources leading to a reduction in carbon dioxide sequestration and global warming resulting to sustain the clean and green environment.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-12-31

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Volume 3, Issue 8, November-December-2017

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Research Articles

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[1]
Ankita Srivastava, Amit Krishan, " A Brief Review on Fly Ash Utilization, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 8, pp.388-396, November-December-2017.